Home › Authors › Hiroyoshi Itō 👤 Hiroyoshi Itō b. 1934 · 3 books Books by Hiroyoshi Itō Koyō keitai no tayōka to rōdōh Koyō keitai no tayōka to rōdōhō 2009 福祉労働の法 Q&A 福祉労働の法 Q&A 2002 Rōdō hogohō no Kenkyū Rōdō hogohō no Kenkyū 1994